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- PTANDRIA. MONOGYNTA. ee 
20, PINGUICULA. L. (Butter-wort.) | : 
Calix bilabiate, upper lip. trifid, lower bifid. 
Corolla irregular, calcarate at the base, limb 
‘ciés; described by Mr. E. as producing a scape 6-8 inches long, 
bearing 2 to 3 large yellow flowers. The upper lip large, - 
rounded, and obscurely 3-lobed, the lower lip smaller, about 
the length of the spur, which is said to be subulate {or as some 
would perhaps say conic) and emarginate. From all which we 
may, I think, here perceive a plant not very widely distinct 
from the U. vulgaris of Pursh and others, considered as equally 
indigenous, like many other aquatics, to the two continents of. 
Europe and North America. : 
3. Longirosiris, of Mr. Le Conte. Floating; scapes 1, 2 (or 
3) flowered, the spur a little longer than the lower lip, (some- 
what compressed) ascending and emarginate. Flowers yellow, 
_ labiz obscurely 3-lobed, scape 3 to 4 inches long. This species 
~ also approaches to the U. vulgaris, but is a much smaller plant, 
with the flowers rather large. ' : 
4. purpurea. Walter, U. saccata of Le Conte. 
Scapes 1, 2, or 3 flowered; lower lip of the corolla 3-lobed, 
lateral lobes cucullate on the under side; palate large and pro- 
minent; nectary compressed, a little acuminated, closely appres- 
sed to the resupinate corolla and entirely covered by its reflected 
margins; upper lip nearly round. ; 
Floating stem 2 or 3 feet long, utriculate leaves digitate, ses- 
sile, segments pinnatifid and setaceous; scapes axillary, 1 or2 to- 
gether. Flower about the size of U. vulgaris, violet-purple; calix 
persistent. Grows in the ponds upon the Blue-ridge, in the state 
of New-York, and on the Broad mountain, Pensylvania. In 1809 
I collected it in a pond near to Lewistown, Sussex county, 
Delaware, from whence it appears to extend as far south as Ca- 
rolina and Georgia. 
5. Gibba floating. — 
6. Bipartita, Elliott. Taking root on the margins of ponds. Ca- - 
rolla nearly entire; spur short, scarcely half as long as the corolla, 
very obtuse. Lower division of the calix difd. 
7. bifora. La Marck. Floating; scape about 2-flowered, corolla 
entire, spur subulate, obtuse, as long as the lower lip. Le Conte. — 
Oss. Vahl describes the nectary as straight, nearly eq-alling 
the upper lip, and with setaceous leaves. South Carolina. a 
8. Personata. Le Conte. ~ jee eg 
| . Flowers small, in along setaceous raceme (14o 2 feet high, 
4—10 flowered) furnished with small sealy bractes; upper lip of 
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